Sean Payton's unsportsmanlike conduct penalty near the end of Thursday night's Saints-Falcons game is being reviewed by the NFL, ESPN reported Friday.

The Saints coach charged out on the field and angrily gestured and yelled at an official who had not seen him signaling for a timeout.

"I called a timeout, and then he asked me again, and I said I have already called a timeout," Payton said after the game. "I probably said it with a little more vigor than I was supposed to but I had enough. I have to be smarter than that."